At Kitcharoen, we commit to full disclose of our product we sell. 

For ruby, we market mostly with fracture healing treatment, we also offer some BE treatment and glass filling in some of our product.

For blue sapphire, we offer only heat treatment

For emerald, we offer only oil treatment.

For other type of gemstones, we offer only according general industry acceptance standard of treatment.

For diamond, we mostly offer natural diamond, only some with treated diamond in which will stated in the product specification.

In order to ensure our product quality to meet international industry standard, we use only major labs for certificates.

Sample Ruby inside our setting certificate by GIA
Sample our Blue sapphire and diamond ring certificate by GIT
Sample our ring to check gold percentage certificate by GIT
Melting result of our silver product from Bangkok Assay